master : always match the last released version of Paperwork + some extra bugfixes. Only documentation updates and safe bugfixes are allowed on this branch. Minor versions come from this branch. Please do not send me changes for this branch. Send them for the branch develop, and I will backport them if required.
unstable : where new features, cleanup, etc go.
release-xxxx : the next version of Paperwork, during its testing phase. No new feature is allowed. Only bugfixes, translations and documentation updates.
Bugfixes usually go in the branch develop before going in the branches release-xxx and master.